body {
  padding-top: 90px;
  color: rgb(14, 13, 13);
  /*background-color: rgb(255, 254, 254);*/
  background-color: rgb(1, 24, 22);
  background-image: url('bg.jpg');
  background-size: cover;
  /* background-position: center; */
  background-repeat: no-repeat;
  /* backdrop-filter: grayscale(100%); */
  /* backdrop-filter: brightness(140%); */
}

/* 모바일 디바이스용 배경 설정 */
@media (max-width: 768px) {
  body {
    background-position: center center;
    background-attachment: scroll;
    min-height: 100vh;
  }
}

/* 작은 모바일 디바이스용 추가 최적화 */
@media (max-width: 480px) {
  body {
    background-position: center 30%;
    padding-top: 70px;
  }
}

#content {
  padding: 40px 20px;
  margin: 40px auto;
  max-width: 1200px;
  background: linear-gradient(135deg, 
    rgba(0, 0, 0, 0.6) 0%, 
    rgba(48, 53, 68, 0.4) 25%, 
    rgba(37, 5, 9, 0.5) 50%, 
    rgba(48, 53, 68, 0.4) 75%, 
    rgba(0, 0, 0, 0.6) 100%);
  backdrop-filter: blur(15px) saturate(180%);
  -webkit-backdrop-filter: blur(15px) saturate(180%);
  border: 1px solid rgba(99, 158, 211, 0.3);
  border-radius: 20px;
  box-shadow: 
    0 16px 32px rgba(0, 0, 0, 0.4),
    0 8px 16px rgba(211, 97, 167, 0.1),
    inset 0 1px 0 rgba(99, 158, 211, 0.2);
  color: rgba(255, 255, 255, 0.95);
}

#edit {
  padding: 40px 20px;
  margin: 40px auto;
  max-width: 1200px;
  background: linear-gradient(135deg, 
    rgba(0, 0, 0, 0.6) 0%, 
    rgba(48, 53, 68, 0.4) 25%, 
    rgba(37, 5, 9, 0.5) 50%, 
    rgba(48, 53, 68, 0.4) 75%, 
    rgba(0, 0, 0, 0.6) 100%);
  backdrop-filter: blur(15px) saturate(180%);
  -webkit-backdrop-filter: blur(15px) saturate(180%);
  border: 1px solid rgba(99, 158, 211, 0.3);
  border-radius: 20px;
  box-shadow: 
    0 16px 32px rgba(0, 0, 0, 0.4),
    0 8px 16px rgba(211, 97, 167, 0.1),
    inset 0 1px 0 rgba(99, 158, 211, 0.2);
  color: rgba(255, 255, 255, 0.95);
}

.panel {
  background: linear-gradient(135deg, 
    rgba(0, 0, 0, 0.6) 0%, 
    rgba(48, 53, 68, 0.4) 25%, 
    rgba(37, 5, 9, 0.3) 50%, 
    rgba(48, 53, 68, 0.4) 75%, 
    rgba(0, 0, 0, 0.6) 100%) !important;
  backdrop-filter: blur(15px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(15px) saturate(180%) !important;
  border: 1px solid rgba(99, 158, 211, 0.3) !important;
  border-radius: 16px !important;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(211, 97, 167, 0.1), inset 0 1px 0 rgba(99, 158, 211, 0.2) !important;
  color: rgba(255, 255, 255, 0.95) !important;
}

a:visited {
  color: rgb(85, 79, 74);
}
a:link {
  color: darkgoldenrod;
}
a:hover {
  color: brown;
}
.btn-custom {
  background: linear-gradient(135deg, 
    rgba(99, 158, 211, 0.2) 0%, 
    rgba(211, 97, 167, 0.15) 50%, 
    rgba(99, 158, 211, 0.2) 100%);
  backdrop-filter: blur(10px) saturate(180%);
  -webkit-backdrop-filter: blur(10px) saturate(180%);
  border: 1px solid rgba(99, 158, 211, 0.4);
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.95);
  padding: 12px 24px;
  font-weight: 500;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 
    0 4px 16px rgba(0, 0, 0, 0.3),
    0 2px 8px rgba(99, 158, 211, 0.2);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.btn-custom:hover {
  background: linear-gradient(135deg, 
    rgba(99, 158, 211, 0.3) 0%, 
    rgba(211, 97, 167, 0.25) 50%, 
    rgba(99, 158, 211, 0.3) 100%);
  border: 1px solid rgba(99, 158, 211, 0.6);
  color: rgba(255, 255, 255, 1);
  transform: translateY(-2px);
  box-shadow: 
    0 8px 24px rgba(0, 0, 0, 0.4),
    0 4px 12px rgba(211, 97, 167, 0.3);
}

nav a:visited {
  color: rgba(255, 255, 255, 0.8);
}
nav a:link {
  color: rgba(255, 255, 255, 0.9);
}
nav a:hover {
  color: rgba(255, 255, 255, 1);
}

.navbar-inverse {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.3);
}

.navbar-inverse .navbar-nav > li > a {
  color: rgba(255, 255, 255, 0.9);
  background: transparent;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 8px;
  margin: 0 4px;
  font-weight: 500;
}

.navbar-inverse .navbar-nav > li > a:hover {
  color: rgba(255, 255, 255, 1);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transform: translateY(-1px);
}

.navbar-inverse .navbar-brand {
  color: rgba(255, 255, 255, 1);
  background: transparent;
  padding: 14px 20px;
  font-weight: 700;
  font-size: 1.4em;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}
/* 
.footer{
    width:100%;
    height:20px;
    position:absolute;
    bottom:0;
} */
.tbl-group-head {
  background-color: rgb(202, 202, 202);
}

.nav-tabs > li.active > a,
.nav-tabs > li.active > a:hover,
.nav-tabs > li.active > a:focus {
  color: rgba(255, 255, 255, 1);
  background: linear-gradient(135deg, 
    rgba(99, 158, 211, 0.3) 0%, 
    rgba(211, 97, 167, 0.2) 50%, 
    rgba(99, 158, 211, 0.3) 100%);
  backdrop-filter: blur(15px) saturate(180%);
  -webkit-backdrop-filter: blur(15px) saturate(180%);
  border: 1px solid rgba(99, 158, 211, 0.4);
  border-radius: 12px 12px 0 0;
  box-shadow: 
    0 4px 12px rgba(0, 0, 0, 0.3),
    0 2px 6px rgba(211, 97, 167, 0.2);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.nav-tabs > li > a {
  font-size: 16px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  background: linear-gradient(135deg, 
    rgba(48, 53, 68, 0.2) 0%, 
    rgba(0, 0, 0, 0.3) 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(99, 158, 211, 0.2);
  border-radius: 12px 12px 0 0;
  margin-right: 4px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.nav-tabs > li > a:hover {
  color: rgba(255, 255, 255, 0.95);
  background: linear-gradient(135deg, 
    rgba(99, 158, 211, 0.15) 0%, 
    rgba(211, 97, 167, 0.1) 50%, 
    rgba(99, 158, 211, 0.15) 100%);
  border: 1px solid rgba(99, 158, 211, 0.3);
  transform: translateY(-2px);
}

/* 폼 요소들 글래스모피즘 */
.form-control {
  background: linear-gradient(135deg, 
    rgba(0, 0, 0, 0.4) 0%, 
    rgba(48, 53, 68, 0.3) 100%);
  backdrop-filter: blur(10px) saturate(180%);
  -webkit-backdrop-filter: blur(10px) saturate(180%);
  border: 1px solid rgba(99, 158, 211, 0.3);
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.95);
  padding: 12px 16px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.form-control:focus {
  background: linear-gradient(135deg, 
    rgba(99, 158, 211, 0.2) 0%, 
    rgba(211, 97, 167, 0.1) 50%, 
    rgba(48, 53, 68, 0.3) 100%);
  border: 1px solid rgba(99, 158, 211, 0.5);
  color: rgba(255, 255, 255, 1);
  box-shadow: 0 0 0 3px rgba(99, 158, 211, 0.2);
  outline: none;
}

.form-control::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

/* 테이블 글래스모피즘 */
.table {
  background: linear-gradient(135deg, 
    rgba(0, 0, 0, 0.7) 0%, 
    rgba(48, 53, 68, 0.5) 50%, 
    rgba(0, 0, 0, 0.7) 100%);
  backdrop-filter: blur(15px) saturate(180%);
  -webkit-backdrop-filter: blur(15px) saturate(180%);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(99, 158, 211, 0.3);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(99, 158, 211, 0.2);
}

.table > thead > tr > th {
  background: linear-gradient(135deg, 
    rgba(99, 158, 211, 0.2) 0%, 
    rgba(211, 97, 167, 0.15) 50%, 
    rgba(99, 158, 211, 0.2) 100%);
  color: rgba(255, 255, 255, 1);
  border-bottom: 1px solid rgba(99, 158, 211, 0.4);
  font-weight: 600;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.table > tbody > tr > td {
  color: rgba(255, 255, 255, 0.95);
  border-top: 1px solid rgba(99, 158, 211, 0.2);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.table > tbody > tr:hover {
  background: linear-gradient(135deg, 
    rgba(99, 158, 211, 0.1) 0%, 
    rgba(211, 97, 167, 0.05) 50%, 
    rgba(99, 158, 211, 0.1) 100%);
}

/* 글래스모피즘 헤로 섹션 */
.hero-glass {
  background: linear-gradient(135deg, 
    rgba(48, 53, 68, 0.2) 0%, 
    rgba(211, 97, 167, 0.1) 25%, 
    rgba(37, 5, 9, 0.2) 50%, 
    rgba(99, 158, 211, 0.15) 75%, 
    rgba(0, 0, 0, 0.3) 100%);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(99, 158, 211, 0.3);
  border-radius: 24px;
  padding: 60px 40px;
  margin: 80px auto;
  max-width: 800px;
  box-shadow: 
    0 32px 64px rgba(0, 0, 0, 0.4),
    0 16px 32px rgba(211, 97, 167, 0.1),
    inset 0 1px 0 rgba(99, 158, 211, 0.3);
  position: relative;
  overflow: hidden;
  animation: float 6s ease-in-out infinite;
}

.hero-glass::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.1) 0%, 
    rgba(255, 255, 255, 0.05) 100%);
  border-radius: 24px;
  pointer-events: none;
}

.hero-title {
  font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 800;
  background: linear-gradient(141deg, #7a2929 0%, #2184dc 25%, #96ffcf 50%, #c6e2ff 75%, #833636 100%); 
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  margin: 0;
  letter-spacing: -0.02em;
  line-height: 1.1;
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  position: relative;
  z-index: 2;
}

.hero-subtitle {
  font-family: 'SF Pro Text', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 400;
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.95) 0%, 
    rgba(99, 158, 211, 0.9) 50%, 
    rgba(211, 97, 167, 0.8) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  margin: 24px 0 0 0;
  letter-spacing: 0.5px;
  line-height: 1.4;
  position: relative;
  z-index: 2;
}

/* 플로팅 애니메이션 */
@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  33% {
    transform: translateY(-10px) rotate(0.5deg);
  }
  66% {
    transform: translateY(-5px) rotate(-0.5deg);
  }
}

/* 빛나는 효과 */
.hero-glass::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, 
    transparent 30%, 
    rgba(255, 255, 255, 0.1) 50%, 
    transparent 70%);
  animation: shine 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes shine {
  0%, 100% {
    transform: rotate(0deg) translateX(-100%);
    opacity: 0;
  }
  50% {
    transform: rotate(45deg) translateX(100%);
    opacity: 1;
  }
}

/* 반응형 디자인 */
@media (max-width: 768px) {
  .hero-glass {
    margin: 40px 20px;
    padding: 40px 24px;
    border-radius: 20px;
  }
  
  .hero-title {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }
  
  .hero-subtitle {
    font-size: clamp(1rem, 4vw, 1.4rem);
  }
}

/* 컨테이너 배경 투명화 */
#index {
  background: transparent;
  position: relative;
  z-index: 1;
}

/* 메시지 박스 글래스모피즘 */
.alert {
  background: linear-gradient(135deg, 
    rgba(0, 0, 0, 0.5) 0%, 
    rgba(48, 53, 68, 0.4) 25%, 
    rgba(99, 158, 211, 0.2) 50%, 
    rgba(48, 53, 68, 0.4) 75%, 
    rgba(0, 0, 0, 0.5) 100%);
  backdrop-filter: blur(15px) saturate(180%);
  -webkit-backdrop-filter: blur(15px) saturate(180%);
  border: 1px solid rgba(99, 158, 211, 0.4);
  border-radius: 16px;
  color: rgba(255, 255, 255, 0.95);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.4),
    0 2px 8px rgba(211, 97, 167, 0.2),
    inset 0 1px 0 rgba(99, 158, 211, 0.3);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}